OSHA Form 300 and OSHA Form 301 are official recordkeeping documents that employers use to track work-related injuries and illnesses.
Both forms are mandated by the Occupational Safety and Health Administration (OSHA) as part of a federal framework designed to improve workplace safety, ensure regulatory compliance, and create a documented history of incidents that can be analyzed over time.
OSHA Form 300, known as the Log of Work-Related Injuries and Illnesses, serves as a running annual record of every reportable incident that occurs in a workplace.
OSHA Form 301, the Injury and Illness Incident Report, accompanies each entry in that log with a detailed account of how and why the individual incident occurred.
Together, these two forms create a complete picture one that functions as both a legal record and a practical safety management tool.
Maintaining these forms is not simply a bureaucratic obligation. For employers, accurate OSHA recordkeeping serves as the foundation of a functioning workplace safety program.
The data captured across both forms reveals patterns over time recurring hazard types, high-risk departments, equipment that frequently causes injuries that would otherwise go unnoticed without systematic documentation.
From a legal standpoint, OSHA requires covered employers to maintain these records and makes them subject to inspection. Failing to do so can result in substantial penalties.
Beyond compliance, the forms support workers' compensation claims, inform the development of training programs, and demonstrate to employees that their safety is being actively monitored and taken seriously.
In this way, proper recordkeeping directly contributes to a stronger workplace safety culture.
OSHA Form 300 functions as a year-long running log where employers record every work-related injury or illness that meets OSHA's definition of recordable.
Each entry in the log captures the case number, employee name, job title, date of the incident, the nature of the injury or illness, the body part affected, and the outcome whether the incident resulted in days away from work, restricted duty, job transfer, or in the most serious cases, death.
The form must be maintained throughout the calendar year and retained for five years from the end of that year.
It is not a static document entries should be updated if the outcome of an incident changes, such as when an employee initially returns to restricted duty but later requires additional time away.
This ongoing accuracy is essential both for compliance and for the analytical value the log provides when reviewed in aggregate at year's end.
Where Form 300 captures the key data points of each incident in a standardized log format, OSHA Form 301 tells the full story.
A separate Form 301 must be completed for every recordable incident entered on the Form 300 log, and it must be filled out within seven calendar days of the employer learning about the incident.
The report collects detailed information across several areas: the employee's personal and job information, the exact date and time of the incident, a narrative description of what the employee was doing when injured, how the injury occurred, what object or substance was involved, what part of the body was affected, and what medical treatment was provided.
It also includes space for witness information and recommendations for preventing similar incidents in the future. This level of detail makes Form 301 the primary document for incident investigation and root cause analysis.
OSHA recordkeeping requirements apply to most private-sector employers, but not all. The obligation is determined primarily by industry classification and company size.
Employers in industries with historically higher injury rates including construction, manufacturing, agriculture, and healthcare are generally required to maintain OSHA records regardless of company size.
Employers in lower-risk industries may be partially or fully exempt.
Small businesses with ten or fewer employees during the previous calendar year are typically exempt from routine OSHA recordkeeping requirements, though they are still required to report severe incidents such as fatalities, hospitalizations, amputations, or loss of an eye directly to OSHA.
Employers who are uncertain about their obligations should consult OSHA's official industry exemption list or contact their regional OSHA office to confirm whether they are covered.
Alongside Forms 300 and 301, employers covered by OSHA recordkeeping rules are also required to complete and post OSHA Form 300A the Annual Summary of Work-Related Injuries and Illnesses.
This form consolidates the year's data from the Form 300 log into a single summary that must be signed by a company executive and posted in a location visible to all employees from February 1 through April 30 of the following year.
Form 300A shows the total number of recordable cases, total days away from work, total days of restricted duty, and average number of employees, among other metrics.
It gives both employees and management a clear annual snapshot of workplace safety performance and is a key element of OSHA's transparency requirements.
Several errors appear consistently when employers manage OSHA forms incorrectly.
The most damaging is failing to record incidents that meet OSHA's definition of recordable whether out of uncertainty about the criteria or an attempt to keep injury counts low.
This misclassification exposes employers to significant penalties and undermines the safety analysis the forms are meant to support.
Late recording is another common issue. OSHA requires Form 301 to be completed within seven calendar days of learning about an incident, and delays reduce the accuracy of the information captured while also putting the employer out of compliance.
Privacy violations such as posting an employee's full name on the publicly visible Form 300A represent a third category of error that carries its own regulatory consequences.
Finally, failing to update entries when an incident's outcome changes leaves the Form 300 log incomplete and unreliable as a safety management tool.
Effective OSHA recordkeeping starts with making sure the right people understand their responsibilities.
Safety personnel and supervisors who are likely to learn about workplace incidents first should be trained on what constitutes a recordable event, how quickly documentation must be completed, and how to fill out each form accurately.
Beyond training, many organizations benefit from using digital recordkeeping platforms that automate form completion, flag missing entries, and store records securely for the required five-year retention period.
Conducting periodic internal audits of the Form 300 log rather than waiting until year-end helps catch errors and omissions before they become compliance issues.
Analyzing the data regularly, rather than treating the forms purely as a filing obligation, turns the recordkeeping system into a genuine safety improvement tool that can reduce incident rates over time.
OSHA Form 300 and OSHA Form 301 are two halves of the same recordkeeping system. Form 300 provides the annual log that tracks every recordable workplace incident in summary form, while Form 301 documents the full details of each individual event.
Used together and complemented by the annual Form 300A summary they give employers, employees, and regulators a comprehensive, transparent record of workplace safety performance.
Meeting OSHA's recordkeeping requirements is a legal obligation for covered employers, but the value of these forms extends well beyond compliance.
Organizations that treat their OSHA records as a source of actionable safety data rather than paperwork to be filed and forgotten are consistently better positioned to reduce workplace injuries, protect their workforce, and build a safety culture that benefits everyone in the organization.